Fix style issues, a typo in "kern.ipc.nmbufs" and correctly plave and expose the value of the tunable maxmbufmem as "kern.ipc.maxmbufmem" through sysctl.
Fix style issues, a typo in "kern.ipc.nmbufs" and correctly plave and
expose the value of the tunable maxmbufmem as "kern.ipc.maxmbufmem"
through sysctl.

Reported by:	smh
MFC after:	1 day

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase